wafer
IPA: wˈeɪfɝ
noun
- A light, thin, flat biscuit/cookie.
- (Christianity) A thin disk of consecrated unleavened bread used in communion.
- A soft disk originally made of flour, and later of gelatin or a similar substance, used to seal letters, attach papers etc.
- (electronics) A thin disk of silicon or other semiconductor on which an electronic circuit is produced.
verb
- (transitive) To seal or fasten with a wafer.